Made this to have a place to put small skips in (might go hunting for some later). So in Battleship Halberd Interior there's that room where you have to kill all of the enemies in the room to continue. Right next to the pair of springs there is a wall that if you stand next to you can lure the metal primid over and kill him through the wall. Saves around 5-10 seconds of walking over there.

Tech doing the skip-